<!doctype html>
<link rel="author" title="Di Zhang" href="mailto:dizhangg@chromium.org">
<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#the-meter-element-2">
<title>Meter appearance native writing mode computed style</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<meter value="40" min="0" max="100" style="writing-mode: horizontal-tb"></meter>
<meter value="40" min="0" max="100" style="writing-mode: vertical-lr"></meter>
<meter value="40" min="0" max="100" style="writing-mode: vertical-rl"></meter>

<script>
test(() => {
  const meter = document.querySelector(`meter[style="writing-mode: horizontal-tb"]`);
  const style = getComputedStyle(meter);
  const blockSize = parseInt(style.blockSize, 10);
  const inlineSize = parseInt(style.inlineSize, 10);
  assert_not_equals(blockSize, 0);
  assert_not_equals(inlineSize, 0);
  assert_greater_than(inlineSize, blockSize);
  assert_equals(style.blockSize, style.height);
  assert_equals(style.inlineSize, style.width);
}, `meter[style="writing-mode: horizontal-tb"] block size should match height and inline size should match width`);

for (const writingMode of ["vertical-lr", "vertical-rl"]) {
  test(() => {
    const meter = document.querySelector(`meter[style="writing-mode: ${writingMode}"]`);
    const style = getComputedStyle(meter);
    const blockSize = parseInt(style.blockSize, 10);
    const inlineSize = parseInt(style.inlineSize, 10);
    assert_not_equals(blockSize, 0);
    assert_not_equals(inlineSize, 0);
    assert_greater_than(inlineSize, blockSize);
    assert_equals(style.blockSize, style.width);
    assert_equals(style.inlineSize, style.height);
  }, `meter[style="writing-mode: ${writingMode}"] block size should match width and inline size should match height`);
};
</script>